Brewin.co.uk W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Stray start tag “html”.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Bad value “http://www.w3.org/250/svg” for the attribute “xmlns” (only “http://www.w3.org/2000/svg” permitted here).
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Attribute “xmlns” is not serializable as XML 1.0.
Empty heading.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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